Client: US fintech (payments platform) · Location: remote, LATAM, US Eastern overlap · Level: senior / principal · Engagement: full-time contractor

You will own the AWS architecture of a regulated payments platform: multi-account structure, network, security baseline and cost.

What you will do

• Design and evolve the multi-account landing zone (Organizations, Control Tower, IAM Identity Center)

• Define reference architectures for services on EKS, Lambda, RDS/Aurora and MSK

• Lead multi-region resilience and disaster recovery design with tested RTO and RPO targets

• Set security standards: network segmentation, KMS key strategy, secrets management

• Run architecture reviews and Well-Architected assessments with engineering teams

• Drive FinOps: tagging, budgets, savings plans and right-sizing

What you bring

• 8+ years in infrastructure or cloud engineering, 4+ architecting on AWS

• Infrastructure as code at scale with Terraform or CDK

• Experience in PCI DSS or SOC 2 environments

• Deep networking knowledge (VPC, Transit Gateway, PrivateLink)

• Ability to write clear design documents and defend trade-offs in English

Nice to have

• AWS Solutions Architect Professional or Security Specialty

• Previous SRE or platform engineering role

• Experience with core banking or card-processing integrations

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